Stopping attachment for watches.



E. T. LEWISL STOPPING ATTACHMENT FOR WATCHES. APPLHIATIOW FILED JULY 21.19x5. RENEWED JUNE 29,1915.

1 ,230,732. I Patented June 19, 1917.

T'icrl v m! IIII WITNESSES //v VEN 70/? f 77. ewzls A TTORNEYS EDWARD THOMAS LEWIS, 0F OCEANPARK, CALIFORNIA.

STOPPING ATTACHMENT FOR WATCHES.

Specification of Letters Patent.

Patented June 19, 1917.

Application filed July 21, 1915, Serial No. 41,088. Renewed .Tune 29, 1916. Serial No. 106,730.

To all whom it may concern:

Be it known that I, EDWARD T. LEWIS, a citizen of the United States, and a resident of Oceanpark, in the county of Los Angeles and State of California, have invented a new and Improved Stopping Attachment for WVatches, of which the following is a full, clear, and exact description.

An object of the invention is to provide a new and improved stopping attachment for watches, more especially designed for use on watches such as are loaned by watch re pairers to customers, and arranged to automatically stop the watch after a predetermined period of time, say a week or two, to induce the customer to return the loaned watch and to pay for the repairs on his own watch. Another object is to permit of applying the stopping attachment to any make of watch without disorganizing the parts of the watch movement.

In order to accomplish the desired result, use is made of automatic means for stopping the watch after the lapse of a predetermined time.

A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure l is a face view of a watch pro vided with the stopping attachment, part of the watch dial being shown broken out;

Fig. 2 is a similar view of a portion of the same; and

Fig. 3 is an edge view of part of the stopping attachment.

Watch repairers very frequently have to lend watches to customers while the cus tomers watch is being repaired, and almost as frequently the customer abuses the ac commodation by keeping the borrowed watch weeks and months thus depriving the repairer of the amount due for repairs and of a watch to loan to another customer and, at the same time, doing more or less damage to the watch loaned; My improvement presently to be described in detail is intended to remedy the retaining of the borrowed watch beyond a reasonable time, the watch being set by the watchmaker to stop in a given number of days.

The hour wheel A of a watch movement of usual construction is provided with two pins 1 and 2 adapted to mesh with the teeth of a gear wheel B mounted to rotate loosely on a stud C attached to the frame D of the watch movement. On the gear wheel B is secured a pin E adapted to engage a brake or stopping lever F pivoted at F on the frame D and adapted to engage the enlarged sleeve G of the second hand G. Normally the lever F does not interfere with the running of the second hand Gr, but when the pin E engages the lever F and imparts a swinging motion thereto then the free end of the lever F bears on the sleeve G with suflicient force to stop the second hand and consequently the entire watch movement.

It will be noticed that when the watch is running in the usual manner, the pins 1 and 2 engage one of the teeth of the gear wheel B every twelve hours, and by providing the gear wheel B, say, with fifteen teeth, it is evident that it takes seven days for the wheel B to make a complete revolution. On the seventh day the pin E engages the lever F and presses the same into forceful engagement with the sleeve G to automatically stop the watch even if the latter is wound up to its full extent. The lever F is provided with a curved portion F for engagement by the pin E, the curved portion being eccentric to the gear wheel B. The gear wheel B is provided with an extra tooth B arranged relative to the pin E so that when the latter moves into engagement with the curved portion F then the pin 1 moves in mesh with the extra tooth B to prevent an accidental turning back movement of the wheel B at the time the pin 2 leaves the tooth adjacent the tooth B. It is understood that the curved portion F offers resistance to the pin E and when the pin 2 leaves the engaged tooth of the gear wheel B the latter would be liable to be turned back were it not for pin 1 engaging the next following tooth B. It will be noticed that if the wheel B would be turned back by the reaction of the curved portion F on the pin E, as described, the watch would run another twelve hours. The pin 1 turns the wheel B a distance sufficient for the pin E to pass so far into engagement with the curved portion F of the lever F that no reaction takes place. If the hands are set backward, the watch will stop again when it has run forward as much as it had been set backward. It is, of course, not intended that any one except the watchmaker should know that turning the hands twenty or more hours forward would start the watch going for another specified number of days, as a stopped watch is never more than six hours wrong. It is understood that the two pins 1 and 2 act as one pin except when in mesh with the extra tooth B and the adjacent teeth.

On the frame D is'arranged a stop pinI-I for the free end of the lever F to rest on in case the second hand G, having an enlarged sleeve G, is replaced by a regular second hand having a smaller size sleeve. Thus 7 when it is desired to have the watch run for an indefinite time or to be sold as a regular timepiece, the watchmaker lifts off the second hand G having the enlarged sleeve G and places another second hand provided with a regular small size sleeve in position on the second arbor. The stop pin I-I now prevents the lever F from touching the sleeve of the regular second hand.

It is expressly understood that a wheel B with a more or less number of teeth may be used for different periods of time at which the watch is to stop automatically even if wound up to its fullest extent.

Having thus described my invention, I claim as new and desire to secure byLetters Patent 1. In combination, a watch movement and a stepping attachment therefor, the hour wheel of the watch movement having driving means for driving the stopping attachment and the latter having stopping means adapted to engage another member of the said watch movement to stop the latter after the lapse of a predetermined time.

2. In combination, a watch movement and stopping attachment therefor, the watch movement having a second hand sleeve and having driving members for driving the said stopping attachment and the latter having stopping means engaging the said second hand sleeve of the movement to stop the latter after the lapse of a predetermined time.

3. In combination, a watch movement and a stoppingattachment therefor and comprising a driven. member, and a'stopping member controlled by the driven member, the driven member being driven intermittently by one part of the said watch movement and the stopping member being adapted to engage another part of the said watch movement. r

t. In combination, a watch movement and a stopping attachment therefor and comprising a driven member driven intermittently from the hour wheel of the said watch movement, and a stopping member controlled by the said driven member and adapted to en gage the sleeve of the second hand of the said watch movement.

5. In combination, a watch movement and a stopping attachment therefor and comprising a gear wheel driven intermittently from the hour wheel of the said watch movement and having a pin, and a brakelever adapted to be engaged by the said pin and pressed 7 into contact with the sleeve of the second hand of the said watch movement.

6. In combination, a watch movement and a stopping attachment therefor and comprising a gear wheel provided with an extra tooth between a pair of adjacent regular teeth, a pair of pins on the face of the hour' wheel of the said watch movement and adapted to engage the teeth of the said gear wheel, a pin on the face of the said gear wheel, and a lever adapted to be engaged by the said pin on the gear wheel, the free end of the said lever being adapted to engage the sleeve of the said second hand'of the said watch movement.

gear wheel, the free end of the said lever being adapted to engage the sleeve of the second hand of the said watch movement.

8. In combination, a watch movement and a stopping attachment therefor and compris ing a gear wheel provided with an extra tooth between a pair of adjacent regular teeth, a pair of pins on the face of the hour wheel of the said watch movement and adapted to engage the teeth of the said gear wheel, a pin on the face of the said gear wheel, and a lever having a cam portion adapted to be engaged by the said pin on the gear wheel, the free end of the said lever being adapted to engage the. sleeve of the second hand of the said watch movement.

9. A watch provided with an hour wheel, a' gear wheel driven intermittently from the said hour wheel, a second hand having an enlarged sleeve, a lever adapted to bear onto the said enlarged sleeve, and a pin on the said gear wheel adapted to press the said lever into stopping engagement with the sleeve of the second hand.

10. A watch provided with an hour wheel,

7. In combination, a watch movement and I a gear wheel driven intermittently from the said hour wheel, a second hand having an enlarged sleeve, a lever adapted to bear onto name to this specification in the presence of the said enlarged sleeve, a pin on the said two subscribing Witnesses. gear Wheel adapted to press the said lever into stopping engagement With the sleeve of EDWARD THOMAS LEW/V13 the second hand, and a stop pin for limiting witnesses: the movement of the said lever- B. L. COOPER,

In testimony whereof I have signed my GILBERT B. FURNESS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0.? 

